【摘要】 简要叙述了我国预应力混凝土 ５０年来的成就与展望，共分：我国预应力混凝土的开拓；低强预应力混凝土的应用；高效预应力混凝土的应用；先张、后张预加应力工艺；预应力混凝土的普及和进一步的推广；研究与发展等六个部分。同时介绍了国内外先张与后张预应力技术的发展趋势，并提出若干建议。更多还原

【Abstract】 Author intends to make a brief review of the great achievements of prestressed concrete structures on buildings since the founding of the P. R. China. It also presents the trend of development of pre- tensioning and post-tensioning techniques in the world and China. Finally, some suggestions are made to promote the progress of science and technology of prestressed concrete.更多还原